Dr. Atsushi Wada Profile

Dr. Atsushi Wada

Research Assistant at National Defense Academy

SPIE Involvement:

Author

Publications (22)

Proceedings Article | 17 May 2022 Poster + Paper

Real-time displacement measurement by using EDF sigma laser with double-pass cascaded-chirped long-period fiber grating

K. Fukushima, A. Wada, M. Okano, S. Tanaka, F. Ito

Proceedings Volume 12139, 121391A (2022) https://doi.org/10.1117/12.2619921

KEYWORDS: Sensors, Polarization, Fiber lasers, Fiber optics sensors, Remote sensing, Optical amplifiers, Erbium lasers

Read Abstract +

Proceedings Article | 23 April 2017 Paper

Simultaneous measurement of vibration and temperature using a Fabry-Perot interferometer in polarization maintaining fiber and laser diodes

Atsushi Wada, Satoshi Tanaka, Nobuaki Takahashi

Proceedings Volume 10323, 1032326 (2017) https://doi.org/10.1117/12.2263200

KEYWORDS: Temperature metrology, Sensors, Polarization, Semiconductor lasers, Fiber Bragg gratings, Interferometers, Fabry–Perot interferometry, Polarization maintaining fibers, Modulation, Transmittance

Read Abstract +

Proceedings Article | 23 April 2017 Paper

Precise measurement technique of long period fiber grating sensors using Fourier transform method

Mayumi Nagatsuka, Masayoshi Koizumi, Satoshi Tanaka, Atsushi Wada, Nobuaki Takahashi

Proceedings Volume 10323, 103234O (2017) https://doi.org/10.1117/12.2265809

KEYWORDS: Sensors, Fiber optics sensors, Fourier transforms, Transmittance, Temperature metrology, Cladding, Signal attenuation, Phase shifts, Measurement devices, Channel projecting optics

Read Abstract +

Proceedings Article | 28 September 2015 Paper

Optical frequency domain reflectometry based fiber Bragg grating vibration sensor array using sinusoidal current modulation of laser diodes

Atsushi Wada, Satoshi Tanaka, Nobuaki Takahashi

Proceedings Volume 9634, 96341F (2015) https://doi.org/10.1117/12.2194688

KEYWORDS: Fiber Bragg gratings, Sensors, Modulation, Semiconductor lasers, Light sources, Signal detection, Photodetectors, Solids, Time metrology, Laser systems engineering

Read Abstract +

Proceedings Article | 28 September 2015 Paper

Simultaneous multipoint strain measurement using cascaded long period fiber gratings

Satoshi Tanaka, Osamu Tsukida, Tang Ngo, Atsushi Wada, Nobuaki Takahashi

Proceedings Volume 9634, 96343Q (2015) https://doi.org/10.1117/12.2194685

KEYWORDS: Cladding, Sensors, Fourier transforms, Transmittance, Fiber optics sensors, Signal attenuation, Multiplexing, Fiber optics, Fabrication, Channel projecting optics

Read Abstract +

Proceedings Article | 1 July 2015 Paper

Temperature and strain measurement by using cascaded chirped long period fiber gratings

Thanh Tung Ngo, Osamu Tsukida, Satoshi Tanaka, Ryoutarou Uchimura, Atsushi Wada, Nobuaki Takahashi

Proceedings Volume 9655, 965537 (2015) https://doi.org/10.1117/12.2185241

KEYWORDS: Temperature metrology, Fourier transforms, Cladding, Signal attenuation, Transmittance, Phase shifts, Fiber optics tests, Fiber optics, Optical components, Fiber optic components

Read Abstract +

Proceedings Article | 1 July 2015 Paper

Multipoint vibration sensing using fiber Bragg gratings and optical frequency domain reflectometry.

Atsushi Wada, Satoshi Tanaka, Nobuaki Takahashi

Proceedings Volume 9655, 96550U (2015) https://doi.org/10.1117/12.2185268

KEYWORDS: Fiber Bragg gratings, Sensors, Modulation, Semiconductor lasers, Light sources, Signal detection, Photodetectors, Solids, Time metrology, Laser systems engineering

Read Abstract +

Proceedings Article | 24 July 2014 Paper

The ASTRO-H X-ray astronomy satellite

Tadayuki Takahashi, Kazuhisa Mitsuda, Richard Kelley, Felix Aharonian, Hiroki Akamatsu, Fumie Akimoto, Steve Allen, Naohisa Anabuki, Lorella Angelini, Keith Arnaud, Makoto Asai, Marc Audard, Hisamitsu Awaki, Philipp Azzarello, Chris Baluta, Aya Bamba, Nobutaka Bando, Marshall Bautz, Thomas Bialas, Roger Blandford, Kevin Boyce, Laura Brenneman, Gregory Brown, Ed Cackett, Edgar Canavan, Maria Chernyakova, Meng Chiao, Paolo Coppi, Elisa Costantini, Jelle de Plaa, Jan-Willem den Herder, Michael DiPirro, Chris Done, Tadayasu Dotani, John Doty, Ken Ebisawa, Teruaki Enoto, Yuichiro Ezoe, Andrew Fabian, Carlo Ferrigno, Adam Foster, Ryuichi Fujimoto, Yasushi Fukazawa, Stefan Funk, Akihiro Furuzawa, Massimiliano Galeazzi, Luigi Gallo, Poshak Gandhi, Kirk Gilmore, Matteo Guainazzi, Daniel Haas, Yoshito Haba, Kenji Hamaguchi, Atsushi Harayama, Isamu Hatsukade, Katsuhiro Hayashi, Takayuki Hayashi, Kiyoshi Hayashida, Junko Hiraga, Kazuyuki Hirose, Ann Hornschemeier, Akio Hoshino, John Hughes, Una Hwang, Ryo Iizuka, Yoshiyuki Inoue, Kazunori Ishibashi, Manabu Ishida, Kumi Ishikawa, Kosei Ishimura, Yoshitaka Ishisaki, Masayuki Itoh, Naoko Iwata, Naoko Iyomoto, Chris Jewell, Jelle Kaastra, Timothy Kallman, Tuneyoshi Kamae, Jun Kataoka, Satoru Katsuda, Junichiro Katsuta, Madoka Kawaharada, Nobuyuki Kawai, Taro Kawano, Shigeo Kawasaki, Dmitry Khangaluyan, Caroline Kilbourne, Mark Kimball, Masashi Kimura, Shunji Kitamoto, Tetsu Kitayama, Takayoshi Kohmura, Motohide Kokubun, Saori Konami, Tatsuro Kosaka, Alexander Koujelev, Katsuji Koyama, Hans Krimm, Aya Kubota, Hideyo Kunieda, Stephanie LaMassa, Philippe Laurent, François Lebrun, Maurice Leutenegger, Olivier Limousin, Michael Loewenstein, Knox Long, David Lumb, Grzegorz Madejski, Yoshitomo Maeda, Kazuo Makishima, Maxim Markevitch, Candace Masters, Hironori Matsumoto, Kyoko Matsushita, Dan McCammon, Daniel McGuinness, Brian McNamara, Joseph Miko, Jon Miller, Eric Miller, Shin Mineshige, Kenji Minesugi, Ikuyuki Mitsuishi, Takuya Miyazawa, Tsunefumi Mizuno, Koji Mori, Hideyuki Mori, Franco Moroso, Theodore Muench, Koji Mukai, Hiroshi Murakami, Toshio Murakami, Richard Mushotzky, Housei Nagano, Ryo Nagino, Takao Nakagawa, Hiroshi Nakajima, Takeshi Nakamori, Shinya Nakashima, Kazuhiro Nakazawa, Yoshiharu Namba, Chikara Natsukari, Yusuke Nishioka, Masayoshi Nobukawa, Hirofumi Noda, Masaharu Nomachi, Steve O'Dell, Hirokazu Odaka, Hiroyuki Ogawa, Mina Ogawa, Keiji Ogi, Takaya Ohashi, Masanori Ohno, Masayuki Ohta, Takashi Okajima, Tsuyoshi Okazaki, Naomi Ota, Masanobu Ozaki, Frits Paerels, Stéphane Paltani, Arvind Parmar, Robert Petre, Ciro Pinto, Martin Pohl, James Pontius, F. Porter, Katja Pottschmidt, Brian Ramsey, Rubens Reis, Christopher Reynolds, Claudio Ricci, Helena Russell, Samar Safi-Harb, Shinya Saito, Shin-ichiro Sakai, Hiroaki Sameshima, Kosuke Sato, Rie Sato, Goro Sato, Makoto Sawada, Peter Serlemitsos, Hiromi Seta, Yasuko Shibano, Maki Shida, Takanobu Shimada, Peter Shirron, Aurora Simionescu, Cynthia Simmons, Randall Smith, Gary Sneiderman, Yang Soong, Lukasz Stawarz, Yasuharu Sugawara, Satoshi Sugita, Andrew Szymkowiak, Hiroyasu Tajima, Hiroaki Takahashi, Hiromitsu Takahashi, Shin-ichiro Takeda, Yoh Takei, Toru Tamagawa, Keisuke Tamura, Takayuki Tamura, Takaaki Tanaka, Yasuyuki Tanaka, Yasuo Tanaka, Makoto Tashiro, Yuzuru Tawara, Yukikatsu Terada, Yuichi Terashima, Francesco Tombesi, Hiroshi Tomida, Yoko Tsuboi, Masahiro Tsujimoto, Hiroshi Tsunemi, Takeshi Tsuru, Hiroyuki Uchida, Hideki Uchiyama, Yasunobu Uchiyama, Yoshihiro Ueda, Shutaro Ueda, Shiro Ueno, Shinichiro Uno, Meg Urry, Eugenio Ursino, Cor de Vries, Atsushi Wada, Shin Watanabe, Tomomi Watanabe, Norbert Werner, Nicholas White, Dan Wilkins, Shinya Yamada, Takahiro Yamada, Hiroya Yamaguchi, Kazutaka Yamaoka, Noriko Yamasaki, Makoto Yamauchi, Shigeo Yamauchi, Tahir Yaqoob, Yoichi Yatsu, Daisuke Yonetoku, Atsumasa Yoshida, Takayuki Yuasa, Irina Zhuravleva, Abderahmen Zoghbi, John ZuHone

Proceedings Volume 9144, 914425 (2014) https://doi.org/10.1117/12.2055681

KEYWORDS: Sensors, X-rays, Hard x-rays, X-ray telescopes, X-ray astronomy, Physics, Space telescopes, Satellites, Astronomy, Spectroscopy

Read Abstract +

Proceedings Article | 2 June 2014 Paper

Highly sensitive operation of intensity-based fiber-optic vibration sensor using cascaded long period fiber grating

Satoshi Tanaka, Osamu Tsukida, Makoto Takeuchi, Shingo Tekuramori, Ryotaro Uchimura, Atsushi Wada, Nobuaki Takahashi

Proceedings Volume 9157, 91571H (2014) https://doi.org/10.1117/12.2059466

KEYWORDS: Sensors, Transmittance, Fiber optics sensors, Cladding, Modulation, Signal attenuation, Fiber optics, Ferroelectric materials, Excimer lasers, Fabrication

Read Abstract +

Proceedings Article | 2 June 2014 Paper

Performance of chirped-FBG Fabry-Perot interferometer sensor in pulse-position modulation scheme: large-signal operation

Shingo Tekuramori, Makoto Takeuchi, Ryotaro Uchimura, Osamu Tsukida, Atsushi Wada, Satoshi Tanaka, Nobuaki Takahashi

Proceedings Volume 9157, 91571B (2014) https://doi.org/10.1117/12.2059405

KEYWORDS: Sensors, Modulation, Fiber Bragg gratings, Fabry–Perot interferometry, Ferroelectric materials, Reflectivity, Laser Doppler velocimetry, Fabry–Perot interferometers, Optical fibers, Transmittance

Read Abstract +

Proceedings Article | 2 June 2014 Paper

Simultaneous measurement of temperature and static strain using FBG Fabry-Perot interferometer in polarization maintaining fiber

R. Uchimura, A. Wada, S. Tekuramori, M. Takeuchi, O. Tukida, S. Tanaka, N. Takahashi

Proceedings Volume 9157, 91570U (2014) https://doi.org/10.1117/12.2058842

KEYWORDS: Temperature metrology, Sensors, Fiber Bragg gratings, Polarization, Transmittance, Fabry–Perot interferometry, Polarization maintaining fibers, Head, Refractive index, Single mode fibers

Read Abstract +

Proceedings Article | 17 October 2012 Paper

Optical fiber sensing with chirped FBG Fabry-Perot interferometer: vibration measurement

K. Ikuma, A. Wada, S. Tanaka, K. Omichi, N. Takahashi

Proceedings Volume 8421, 84213R (2012) https://doi.org/10.1117/12.966349

KEYWORDS: Sensors, Fiber Bragg gratings, Fabry–Perot interferometry, Vibrometry, Modulation, Optical sensing, Ferroelectric materials, Optical fibers, Reflectors, Transmittance

Read Abstract +

Proceedings Article | 17 October 2012 Paper

Experimental investigation of dynamic characteristics of wavelength of DFB-LD for FBG-FPI vibration sensor based on wavelength-to-time mapping

Atsushi Wada, Keisuke Ikuma, Satoshi Tanaka, Nobuaki Takahashi

Proceedings Volume 8421, 842151 (2012) https://doi.org/10.1117/12.975152

KEYWORDS: Fiber Bragg gratings, Sensors, Reflectivity, Modulation, Light sources, Fiber optics sensors, Current controlled current source, Cladding, Fabry–Perot interferometry, Mirrors

Read Abstract +

Proceedings Article | 17 October 2012 Paper

Intensity-based LPG vibration sensor array using FBG and broadband optical source

S. Tanaka, A. Wada, K. Ikuma, N. Takahashi

Proceedings Volume 8421, 84213Y (2012) https://doi.org/10.1117/12.968202

KEYWORDS: Sensors, Fiber optics sensors, Fiber Bragg gratings, Multiplexing, Wavelength division multiplexing, Cladding, Signal attenuation, Transmittance, Light sources, Modulation

Read Abstract +

Proceedings Article | 19 May 2011 Paper

Highly sensitive operation of LPG vibration sensor using bending-induced spectral change

Satohi Tanaka, Atsushi Wada, Nobuaki Takahashi

Proceedings Volume 7753, 77539Q (2011) https://doi.org/10.1117/12.885055

KEYWORDS: Signal attenuation, Sensors, Modulation, Cladding, Transmittance, Fiber Bragg gratings, Tunable lasers, Light, Fiber optics sensors, Spectrum analysis

Read Abstract +

Proceedings Article | 18 May 2011 Paper

FBG-based vibration measurement of rotating structure using optical fiber rotary joint

Nobuaki Takahashi, Satohi Tanaka, Atsushi Wada

Proceedings Volume 7753, 77537U (2011) https://doi.org/10.1117/12.884937

KEYWORDS: Fiber Bragg gratings, Sensors, Vibrometry, Optical fibers, Fiber lasers, Wavelength division multiplexing, Multiplexing, Fiber optics sensors, Modulation, Structured optical fibers

Read Abstract +

Proceedings Article | 18 May 2011 Paper

High performance interrogation of long period fiber grating sensor with wavelength scanning and Fourier analysis

Atsushi Wada, Satoshi Tanaka, Nobuaki Takahashi

Proceedings Volume 7753, 77536K (2011) https://doi.org/10.1117/12.885046

KEYWORDS: Sensors, Fiber optics sensors, Temperature metrology, Cladding, Signal attenuation, Light sources, Fiber Bragg gratings, Fourier transforms, Modulation, Sensing systems

Read Abstract +

Proceedings Article | 9 September 2010 Paper

Optical vibration sensor using FBG Fabry-Perot interferometer with wavelength scanning and Fourier analysis

Atsushi Wada, Satoshi Tanaka, Nobuaki Takahashi

Proceedings Volume 7653, 765313 (2010) https://doi.org/10.1117/12.866293

KEYWORDS: Fiber Bragg gratings, Modulation, Sensors, Reflectivity, Photodetectors, Light sources, Fabry–Perot interferometry, Signal detection, Ferroelectric materials, Signal processing

Read Abstract +

Proceedings Article | 5 October 2009 Paper

Sensitivity enhancement of LPG vibration sensor using higher-order cladding mode

S. Tanaka, H. Somatomo, A. Wada, N. Takahashi

Proceedings Volume 7503, 75033C (2009) https://doi.org/10.1117/12.834167

KEYWORDS: Sensors, Signal attenuation, Cladding, Modulation, Fiber Bragg gratings, Fiber optics sensors, Light, Tunable lasers, Ferroelectric materials, Vibrometry

Read Abstract +

Proceedings Article | 5 October 2009 Paper

Fiber bragg grating hydrophone array using multi-wavelength laser: simultaneous multipoint underwater acoustic detection

S. Tanaka, A. Wada, N. Takahashi

Proceedings Volume 7503, 75031S (2009) https://doi.org/10.1117/12.834235

KEYWORDS: Fiber Bragg gratings, Sensors, Acoustics, Fiber lasers, Wavelength division multiplexing, Transducers, Velocity measurements, Tunable lasers, Modulation, Fiber optics sensors

Read Abstract +

Proceedings Article | 5 October 2009 Paper

High-sensitivity vibration sensing using in-fiber Fabry-Perot interferometer with fiber-Bragg-grating reflectors

Atsushi Wada, Satoshi Tanaka, Nobuaki Takahashi

Proceedings Volume 7503, 75033L (2009) https://doi.org/10.1117/12.834166

KEYWORDS: Fiber Bragg gratings, Reflectivity, Fabry–Perot interferometry, Reflectors, Sensors, Optical fibers, Current controlled current source, Light sources, Ferroelectric materials, Photodetectors

Read Abstract +

Proceedings Article | 24 January 2008 Paper

Multiple phase-shifting white-light interferometry for quantitative detection

Tomotake Terasawa, Atsushi Wada, Yukihiro Ishii

Proceedings Volume 6829, 682928 (2008) https://doi.org/10.1117/12.768580

KEYWORDS: Detection and tracking algorithms, Interferometry, Phase interferometry, Algorithm development, Light sources, Phase shifts, Phase measurement, Light, Computer simulations, Solids

Read Abstract +

Showing 5 of 22 publications

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Keywords/Phrases

Search In:

Publication Years